Skip to Main Content
Status and trends of dam removal research in the United StatesAuthor(s): J. Ryan Bellmore; Jeffrey J. Duda; Laura S. Craig; Samantha L. Greene; Christian E. Torgersen; Mathias J. Collins; Katherine Vittum
Source: Wiley Interdisciplinary Reviews: Water. 4(2): e1164-.
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
Download Publication (1019.0 KB)
Related Research Highlights
After the dam comes down
DescriptionAging infrastructure coupled with growing interest in river restoration has driven a dramatic increase in the practice of dam removal. With this increase, there has been a proliferation of studies that assess the physical and ecological responses of rivers to these removals. As more dams are considered for removal, scientific information from these dam-removal studies will increasingly be called upon to inform decisions about whether, and how best, to bring down dams. This raises a critical question: what is the current state of dam-removal science in the United States? To explore the status, trends, and characteristics of dam-removal research in the U.S., we searched the scientific literature and extracted basic information from studies on dam removal. Our literature review illustrates that although over 1200 dams have been removed in the U.S., fewer than 10% have been scientifically evaluated, and most of these studies were short in duration (<4 years) and had limited (1–2 years) or no pre-removal monitoring. The majority of studies focused on hydrologic and geomorphic responses to removal rather than biological and water-quality responses, and few studies were published on linkages between physical and ecological components. Our review illustrates the need for long-term, multidisciplinary case studies, with robust study designs, in order to anticipate the effects of dam removal and inform future decision making.
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationRyan Bellmore, J.; Duda, Jeffrey J.; Craig, Laura S.; Greene, Samantha L.; Torgersen, Christian E.; Collins, Mathias J.; Vittum, Katherine. 2016. Status and trends of dam removal research in the United States. Wiley Interdisciplinary Reviews: Water. 4(2): e1164-. https://doi.org/10.1002/wat2.1164.
Keywordsdams, dam removal, monitoring, meta-analysis, river restoration
- Dam removal: Listening in
- Liberated rivers: lessons from 40 years of dam removal
Physical and biological responses to an alternative removal strategy of a moderate-sized dam in Washington, USA.
XML: View XML